Transcript Chemical Jeopardy

Chemical…
JEOPARDY!
Chemical Jeopardy
Atoms
More
Atoms
Empirical
Formulas
Stoichiometry
Limiting
Reagents
Potpourri
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Atoms 100
These particles are responsible for most of
the mass of an atom.
What are protons and neutrons?
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Atoms 200
An atom of phosphorous (P) would have
this charge if it gained three electrons.
What is -3?
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Atoms 400
An alpha particle is composed of two
protons and two neutrons. If an atom of
224Ra emits two alpha particles, this atom
will result.
What is 216Po?
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Atoms 300
56Fe2+
has this many protons, neutrons,
and electrons
What are 26, 30, and 24?
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Molarity 500
Describe what is going on here:
What is Rutherford’s Gold Foil Experiment?
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More Atoms 100
This is the molar mass of the amino
acid glycine, C2H6NO2
What is 76 g/mol?
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More Atoms 200
This is the molar mass of Cu(NO3)2
What is 187.57 g/mol?
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More Atoms 300
There are this many molecules of glucose
(C6H12O6) in 1.50 g of the substance?
What are 5.0 x 10^21 molecules?
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More Atoms 400
There are this many atoms of hydrogen in
22.50 g of the gas. Remember, hydrogen
is a diatomic molecule.
What are ________ atoms H?
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More Atoms 500
What is going on here, and why do we care
about it when we turn on the TV?
Next:
Empirical Formulas 100
This is the percent of oxygen in KMnO4.
What is 40.5%?
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Empirical Formulas 200
Free hydrgoen gas can be obtained from
ethyl alcohol (C2H5OH). This many grams
can be obtained from 150.0g of the
alcohol,
What are 19.6 g?
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Empirical Formulas 300
This is the empirical formula of Erythrose,
C 4H 8O 4.
What is CH2O?
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Empirical Formulas 400
A sample of the mineral ore ilmenite
contains 5.41 g iron, 4.64 g titanium, and
4.65 g oxygen. This is the empirical
formula of the ore.
What is FeTiO3?
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Empirical Formulas 500
Analysis of 100g of Vitamin C (ascorbic
acid) reveals that it has the following
elemental composition: 40.92 g C, 4.58 g
H, and 54.50 g O. What is the empirical
formula for Vitamin C?
What is C3H4O3?
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Stoichiometry 100
This is the first step in any stoichiometry
problem.
What is balancing the equation?
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Stoichiometry 200
This is the balanced form of the following
equation:
LiOH + CO2  Li2CO3 + H2O
What is 2LiOH + CO2  Li2CO3 + H2O?
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Stoichiometry 300
0.45 moles of nitrogen will react with this
many moles of hydrogen in the following
reaction, called the Haber Process:
N2 + H2  NH3
What are 1.35 moles H2?
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Stoichiometry 400
This many grams of carbon dioxide will
form from the complete combustion of
25.0g butene, C4H10.
What are _____ g?
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Stoichiometry 500
2.2 x 10^9 kg of CO2 are produced
annually. If you assume it all came from
the combustion of gasoline (octane), this
is how much octane combusted.
What is a lot of octane?
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Limiting Reagents 100
Upon completion of the reaction below, this
amount of the limiting reagent, B, will be left
remaining:
A+BC+D
What is none?
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Limiting Reagents 200
True or False: the limiting reagent is
always the reactant present in smaller
amounts?
What is false – you must consider
stoichiometry as well?
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Limiting Reagents 300
Magnesium and hydrochloric acid react as
shown below. If you add a strip of Mg to a
test tube of HCl and the metal completely
disappears, this is the limiting reagent:
Mg + HCl  H2 + MgCl2
What is magnesium?
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Limiting Reagents 400
This is the mass of nitrogen dioxide that
could be produced from the reaction of
30.0g of NO and 30.0g of O2:
NO + O2  NO2
What are ______g NO2?
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Limiting Reagents 500
This is the mass of excess reagent left
when 100.0g glucose, C6H12O6, reacts
with 180.0 g O2.
What are ______g glucose?
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Potpourri 100
Grampa Simpson’s new hybrid car now gets
4.17 furlongs to the quart. This is the fuel
efficiency of his car in kilometers per liter
when 1 furlong = 7920 in, 1 in = 2.54 cm, 1
quart = 32 ounces, and 1 ounce = 29.57 mL
What is 0.889 km/L
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Potpourri 200
This element is formed when 235U gives off
three alpha particles and later emits two
beta particles (formed from the
decomposition of a neutron into a proton
and electron).
What is 223Ra (radium)?
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Potpourri 300
In terms of the Bonds, James Bonds
between atoms, explain where the heat
produced in an exothermic reaction comes
from.
Products have lower Ep than reactants.
Change in Ep is released as heat.
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Potpourri 400
Talk to me about GFP
Green Fluorescent Protein. Research on it
was awarded 2008 Nobel Prize. Useful for
illuminating biological processes. Used as
a protein tag.
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Potpourri 500
“Thus conscience doth make
_______ of us all.”
What are cowards?
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More Atoms 500(b)
Why was JJ Thompson addicted to Laguna Beach?
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